During the Pennsylvanian period (300 to 320 million years ago), this area was part of the Paradox Basin, a giant inland sea that dried up intermittently, leaving behind a thick accumulation (5000 feet, 1525 meters) of layered marine salt. Loading by deposition of subsequent Permian through Triassic layers caused the ductile salt to flow toContinue reading “Rock Arches, Geology and the Wonders of Abduction”
Tag Archives: national parks
Off The Road, Back In Town
Returning from vacation and getting back to work is always hard. This year, returning to a three-class, ten-credit teaching load after driving some six thousand miles through New Mexico, Utah, Arizona, Colorado, Wyoming and South Dakota feels particularly onerous. Syllabi still need finishing touches, and despite my best attempts to hike as much as possible,Continue reading “Off The Road, Back In Town”
Samir Chopra 